Mitsubishi Outlander XL. Manual - part 1277

FAIL-SAFE SPECIFICATIONS

Diagnost
ic trouble
code No.

Diagnostic item Fail-safe

Detection
timing

Countermeasures for failure

Cancel
condition

AWD
control

Combination
meter  (AWD
operation
indicator,
LOCK
indicator,
driving
system

 oil

temperature
warning
lamp)

Actuator
relay  inside
AWD-ECU

C1078

Different size tire
installation

Always

Gradually to
FWD

AWD

 and

LOCK
indicators
flash
alternately.

ON

Ignition

 switch:

OFF

C1456

Harness,
coupling

 coil

overcurrent
abnormality

Always

Immediatel
y to FWD

AWD

 and

LOCK
indicators
flash
alternately.

OFF

Ignition

 switch:

OFF

C145A

Harness,
coupling

 coil

short

 circuit

abnormality

Always

Immediatel
y to FWD

AWD

 and

LOCK
indicators
flash
alternately.

OFF

Ignition

 switch:

OFF

C145D

Harness,
coupling

 coil

break
abnormality

Always

Immediatel
y to FWD

AWD

 and

LOCK
indicators
flash
alternately.

OFF

Ignition

 switch:

OFF

C145F

Coupling
overload

Always

Gradually to
FWD

Drive  system
oil
temperature
warning  lamp
turns ON.

ON

Estimated
temperature

 of

coupling  is  at
specification  or
less.

C1460

Drive

 mode

selector  circuit
abnormality

FWD  switch:
ON
LOCK switch:
ON

Changes
into  AWD
AUTO
mode.

AWD

 and

LOCK
indicators
flash
alternately.

ON

Coupling:
Resumes

 the

normal state.

27-14

REAR AXLE

ELECTRONIC CONTROL AWD

Diagnost
ic trouble
code No.

Diagnostic item Fail-safe

Detection
timing

Countermeasures for failure

Cancel
condition

AWD
control

Combination
meter  (AWD
operation
indicator,
LOCK
indicator,
driving
system

 oil

temperature
warning
lamp)

Actuator
relay  inside
AWD-ECU

C2100

Battery  voltage
abnormality
(Low voltage)

When

 the

engine  speed
is 1500 r/min,
IG1 voltage is
less than 8 V,
and

 battery

voltage is less
than 8 V.

Gradually to
FWD

AWD

 and

LOCK
indicators
flash
alternately.

ON

Ignition

 switch:

OFF

C2101

Battery  voltage
abnormality
(High voltage)

IG1  voltage
and

 battery

voltage

 are

more  than  17
V.

Gradually to
FWD

AWD

 and

LOCK
indicators
flash
alternately.

ON

Ignition

 switch:

OFF

C211C

IG1

 power

supply

 low

voltage
abnormality

IG1 voltage is
less than 8 V.

Gradually to
FWD

AWD

 and

LOCK
indicators
flash
alternately.

ON

Ignition

 switch:

OFF

C211D

IG1

 power

supply

 high

voltage
abnormality

IG1 voltage is
more  than  17
V.

Gradually to
FWD

AWD

 and

LOCK
indicators
flash
alternately.

ON

Ignition

 switch:

OFF

C211E

Power

 supply

voltage
abnormality
(Low voltage)

IG1 voltage is
7.5 V or more.

Immediatel
y to FWD

AWD

 and

LOCK
indicators
flash
alternately.

OFF

Ignition

 switch:

OFF

C211F

Power

 supply

voltage
abnormality
(High voltage)

Power  supply
voltage  is  17
V or more

Gradually to
FWD

AWD

 and

LOCK
indicators
flash
alternately.

ON

Battery

 power

supply  voltage  is
16 V or less.

REAR AXLE

27-15

ELECTRONIC CONTROL AWD

Diagnost
ic trouble
code No.

Diagnostic item Fail-safe

Detection
timing

Countermeasures for failure

Cancel
condition

AWD
control

Combination
meter  (AWD
operation
indicator,
LOCK
indicator,
driving
system

 oil

temperature
warning
lamp)

Actuator
relay  inside
AWD-ECU

C2208

AWD-ECU
internal
abnormality

Always

Immediatel
y to FWD

AWD

 and

LOCK
indicators
flash
alternately.

OFF

Ignition

 switch:

OFF

U0001

Bus

 off

abnormality

When  bus-off
interruption  is
detected

Control
using

 the

data  value
just  before
the  bus-off
detection.

AWD

 and

LOCK
indicators
flash
alternately.

Turns

 ON/

OFF
depending on
the data value
just

 before

the

 bus-off

detection.

Ignition

 switch:

OFF

U0100

Engine CAN time
out

Always

Gradually to
AWD AUTO
mode

AWD

 and

LOCK
indicators
flash
alternately.

ON

Ignition

 switch:

OFF

U0121

ABS  CAN  time
out

ABS

 signal

cannot

 be

received.

Gradually to
FWD

AWD

 and

LOCK
indicators
flash
alternately.

ON

Ignition

 switch:

OFF

U0141

ETACS

 CAN

time out

ETACS
signal  cannot
be received.

Retains  the
last  normal
status.

AWD

 and

LOCK
indicators
flash
alternately.

ON

Ignition

 switch:

OFF

U0401

Engine

 CAN

data abnormality

Always

Gradually to
AWD AUTO
mode

AWD

 and

LOCK
indicators
flash
alternately.

ON

Ignition

 switch:

OFF

27-16

REAR AXLE

ELECTRONIC CONTROL AWD

Diagnost
ic trouble
code No.

Diagnostic item Fail-safe

Detection
timing

Countermeasures for failure

Cancel
condition

AWD
control

Combination
meter  (AWD
operation
indicator,
LOCK
indicator,
driving
system

 oil

temperature
warning
lamp)

Actuator
relay  inside
AWD-ECU

U0415

ABS  CAN  data
abnormality

One  or  more
wheel  speed
data

 has

abnormality.

Gradually to
FWD

AWD

 and

LOCK
indicators
flash
alternately.

ON

Ignition

 switch:

OFF

U113C

Wheel

 speed

sensor
abnormality

ABS

 signal

cannot

 be

received.
Diagnostic
trouble  code
U0121

 has

not

 been

detected yet.

Gradually to
FWD

AWD

 and

LOCK
indicators
flash
alternately.

ON

Ignition

 switch:

OFF

DIAGNOSTIC FUNCTION

AWD-ECU  has  the  following  functions  for  easier
system  checks.  All  of  the  following  items  can  be
diagnosed using the scan tool.

｠

Diagnostic trouble code set

｠

Service data output

｠

Actuator test

｠

Freeze frame data output

DIAGNOSTIC TROUBLE CODE SET
Using  scan  tool,  the  diagnostic  trouble  code
(information  of  failures  generated  in  the  electronic
control  AWD  system)  can  be  read.  When  a  failure
occurs,  AWD-ECU  sets  the  diagnostic  trouble  code
for that failure in the nonvolatile memory (EEPROM*),
so the recorded information will not be erased even if
the battery is disconnected.

NOTE:

｠

*EEPROM  (Electrical  Erasable  &  Programmable
ROM):  Special  type  of  memory  that  can  be
programmed or erased electrically

｠

For the diagnostic trouble code output items of the
electronic control AWD, refer to Workshop Manual.

SERVICE DATA OUTPUT
Using scan tool, the data (input data from each ECU
and switch) used for control by the electronic control
AWD system can be read.

NOTE: 

For each service data item, refer to

Workshop Manual.

ACTUATOR TEST
Scan tool can forcibly drive the actuators (electronic
control  coupling  solenoid  and  drive  mode  indicator)
controlled by the electronic control AWD system.

NOTE: 

For the actuator test specification, refer

to Workshop Manual.

FREEZE FRAME DATA OUTPUT
Scan  tool  can  read  the  freeze  frame  data  (driving
conditions  when  the  failure  occurs)  set  when  the
diagnostic trouble code is detected.

NOTE: 

For freeze frame data items, refer to

Workshop Manual.

REAR AXLE

27-17

ELECTRONIC CONTROL AWD